在Java中将ArrayList 对象转换为整数

I am trying to read a combination of Strings and ints into an ArrayList from a txt file. I know the issue has something to do with the conversion of the ArrayList String object to Integer, but I have no Idea how to fix it. I am initializing the first two indexes of the arraylist to the instance variables "name" and "creationDate". the purpose of the program is an mp3 player with the playlist name, creation date, and song title, artist, and length. Please help!!I am trying to read a combination of Strings an